1p3a Experience · May 2026

squarepoint junior discretionary trader technical phone interview experience

SWE Phone Screen newgrad
1 upvote

Interview Experience

3月份网上申请的junior discretionary trader,然后5月份收到recruiter的邮件说要安排一面(一小时,说是math,stats,problem solving, coding,还给了hackerrank link)。 面试的时候先让我简单介绍自己的背景,然后就问什么是delta,gamma,is gamma positive or negative/increasing or decreasing for calls and puts if the underlying price increases. If a call option has a delta and gamma of 1, and the underlying increases by 10, what is the delta/gamma pnl? 因为邮件里面没说会考finance的题,所以没有充分的准备然后答的也不太好。我不太懂什么事delta/gamma pnl, 所以花了30分钟绕了一大圈也没答上,最后告诉我正确答案。然后就问了我用什么indicator炒股票,我说...

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About This Question

This is a candidate experience report from a squarepoint interview for a swe role (newgrad level) during the phone screen round reported in 2026.

It covers the following topics: Arrays .

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About Squarepoint Interview Reports

This question was reported by a candidate who interviewed at Squarepoint. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.

Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at Squarepoint are the higher-signal extractions to take from this report.

For broader preparation context, the Squarepoint interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.

How To Practice This Type of Question

Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.

Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in Squarepoint reports consistently are the ones worth investing in; one-off niche problems are not.

During Your Squarepoint Round

Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.

The single most predictive failure mode in Squarepoint reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.